Jeff Rowland Concerto 2008 - Silver

I'm the original owner, purchased in 2008.

Features
Two pairs XLR input connectors for balanced system configurations.
Three pairs RCA input connectors for unbalanced system configurations.
Two pairs of parallel, high-current, balanced line level preamplifier outputs to allow driving of external amplifiers, subwoofers, zones, etc.
Fully-balanced transformer-coupled inputs provide universal compatibility with other components and eliminate ground loop noise and EMI.
Fully-balanced circuit topology implemented on all inputs and outputs.
Bypass function allows for transparent use in combination audio/home theater systems.
Regulated, high-current, linear power supply provides stable operating voltage with the lowest possible noise and distortion artifacts under all operating and line conditions.
Low power consumption permits constant power-up operation to eliminate warm-up time.
Optical encoder type volume control maintains quiet, trouble-free performance and accuracy over the entire lifetime of the product.
Dual range volume control allows large volume level changes when knob is rotated abruptly, yet allows small, precise volume level changes when knob is rotated slowly.
Six function, hand-held infrared remote transmitter.
Ultra-low resonance, structurally rigid chassis, precision-machined from a solid block of aircraft grade 6061-T6 aluminum.

No phono module.

Concerto Specifications
Overall Gain
20 dB

Gain Range
99.5 dB, 199 Equal Increments

Gain Resolution
0.5 dB, +/- 0.03 dB Over Entire Range

Frequency Response
10 Hz – 280 kHz, -3 dB

Maximum Input Level
15 volts RMS @ 0 dB Gain

Maximum Output Level
13.5 volts RMS

CCIF Intermodulation Distortion, 19/20 kHz
90 dB, 20 Hz – 20 kHz

Input Impedance
40K ohms Balanced or Unbalanced

Channel Separation
> 90 dB, 20 Hz – 20 kHz

Inputs
2 pair Balanced (XLR)
1 pair Unbalanced (RCA)
Unity Gain (Bypass)
3 pair Unbalanced (RCA)

Outputs
2 pair Balanced (XLR) Line Level

Power Consumption
7 watts

Preamplifier Weight
21 lbs. / 9.8 kg

Overall Preamplifier Dimensions (H) x (W) x (D)
3.2” x 17.3” x 12.9” 80mm x 440mm x 328mm